:d
the graph of f(x)=3√ x is shifted down one unit and seven units to the left. write the equation of the resulting function.

The new equation would be 3[sqrt(x+7)] - 1.  The side to side movement goes with the x (cuz the x axis runs horizontally, and the up and down movement goes outside the square root sign to indicate up or down movement.  If the function move up one unit that -1 would be a +1 instead